Title :
Coherence effects of the interference on the performance of optimum/adaptive beamformer
Author :
Serebryakov, G.V. ; Sidorovitch, D.V. ; Mecklenbraeuker, C.
Author_Institution :
Inst. of Appl. Math. Cybern., Nizhny Novgorod, Russia
Abstract :
We present an analysis of the interference coherence effects on the performance of an antenna array processor, which maximizes the output signal-to-noise ratio (SNR) for a coherent wave. The analytical expression for the optimal weight vector, directional pattern and output SNR is derived as a function of the coherence coefficient, interference power and parameters of the adaptive processor. We show how different models of interference coherence affect the array performance. Finally, to illustrate the theory, several numerical results are given
Keywords :
adaptive antenna arrays; array signal processing; interference suppression; SNR; antenna array processor; coherence coefficient; coherent wave; directional pattern; interference coherence effects; interference power; numerical results; optimal weight vector; optimum/adaptive beamformer; output SNR; output signal-to-noise ratio; Acoustic propagation; Adaptive arrays; Apertures; Array signal processing; Coherence; Degradation; Interference; Pattern analysis; Sensor arrays; Signal to noise ratio;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1995. ICASSP-95., 1995 International Conference on
Conference_Location :
Detroit, MI
Print_ISBN :
0-7803-2431-5
DOI :
10.1109/ICASSP.1995.479773
